To obtain older daily builds of Rockbox, click the "daily builds" link on
the Rockbox home page. Next, scroll down to your platform, E.G. I-Audio X5.
You should see two links: (1) "latest" and (2) "old." Clicking on "old" will
generate a page containing older daily builds for Rockbox. Just click on
November 19, 2006 and you should be set.